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1 /* |
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2 * Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: TLS holder for service settings UI |
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15 * |
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16 */ |
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17 |
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18 // INCLUDE FILES |
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19 #include "CWVSettingsUITlsHolder.h" |
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20 |
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21 |
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22 // ============================ MEMBER FUNCTIONS =============================== |
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23 |
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24 // ----------------------------------------------------------------------------- |
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25 // CWVSettingsUITlsHolder::CWVSettingsUITlsHolder |
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26 // C++ default constructor can NOT contain any code, that |
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27 // might leave. |
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28 // ----------------------------------------------------------------------------- |
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29 // |
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30 CWVSettingsUITlsHolder::CWVSettingsUITlsHolder() |
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31 : iResourceLoaded( EFalse ), iResourceReferenceCount( 0 ) |
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32 { |
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33 } |
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34 |
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35 |
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36 // ----------------------------------------------------------------------------- |
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37 // CWVSettingsUITlsHolder::InstanceL |
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38 // Singleton retrieve method. |
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39 // ----------------------------------------------------------------------------- |
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40 // |
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41 CWVSettingsUITlsHolder* CWVSettingsUITlsHolder::InstanceL() |
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42 { |
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43 CWVSettingsUITlsHolder* holder = NULL; |
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44 holder = static_cast<CWVSettingsUITlsHolder*>( Dll::Tls() ); |
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45 if ( !holder ) |
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46 { |
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47 holder = CWVSettingsUITlsHolder::NewLC(); |
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48 User::LeaveIfError( Dll::SetTls( holder ) ); |
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49 CleanupStack::Pop( holder ); // holder |
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50 } |
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51 |
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52 return holder; |
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53 } |
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54 |
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55 |
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56 // ----------------------------------------------------------------------------- |
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57 // CWVSettingsUITlsHolder::DestroySingletonsAndHolder() |
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58 // |
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59 // |
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60 // (other items were commented in a header). |
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61 // ----------------------------------------------------------------------------- |
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62 // |
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63 TInt CWVSettingsUITlsHolder::DestroySingletonsAndHolder() |
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64 { |
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65 TInt err = KErrNone; |
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66 |
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67 CWVSettingsUITlsHolder* holder = NULL; |
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68 holder = static_cast<CWVSettingsUITlsHolder*>( Dll::Tls() ); |
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69 if ( holder ) |
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70 { |
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71 //holder exist, so try to delete it |
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72 err = Dll::SetTls( NULL ); |
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73 |
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74 if ( err == KErrNone ) |
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75 { |
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76 //we could null the TLS - destroy now self |
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77 delete holder; |
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78 } |
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79 else |
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80 { |
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81 //couldn't null the TLS, it's ok |
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82 //destroy just owned singletons |
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83 holder->DoReleaseSingletons(); |
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84 } |
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85 } |
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86 |
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87 return err; |
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88 } |
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89 |
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90 |
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91 |
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92 |
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93 // ----------------------------------------------------------------------------- |
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94 // CWVSettingsUITlsHolder::NewLC |
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95 // Two-phased constructor. |
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96 // ----------------------------------------------------------------------------- |
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97 // |
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98 CWVSettingsUITlsHolder* CWVSettingsUITlsHolder::NewLC() |
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99 { |
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100 CWVSettingsUITlsHolder* self = new( ELeave ) CWVSettingsUITlsHolder; |
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101 CleanupStack::PushL( self ); |
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102 return self; |
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103 } |
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104 |
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105 |
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106 |
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107 // Destructor |
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108 CWVSettingsUITlsHolder::~CWVSettingsUITlsHolder() |
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109 { |
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110 DoReleaseSingletons(); |
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111 } |
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112 |
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113 |
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114 |
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115 // ----------------------------------------------------------------------------- |
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116 // CWVSettingsUITlsHolder::ResourceIsLoaded() |
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117 // |
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118 // (other items were commented in a header). |
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119 // ----------------------------------------------------------------------------- |
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120 // |
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121 TBool CWVSettingsUITlsHolder::ResourceIsLoaded() const |
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122 { |
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123 return iResourceLoaded; |
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124 } |
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125 |
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126 |
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127 // ----------------------------------------------------------------------------- |
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128 // CWVSettingsUITlsHolder::ResourceLoaded() |
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129 // |
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130 // (other items were commented in a header). |
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131 // ----------------------------------------------------------------------------- |
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132 // |
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133 void CWVSettingsUITlsHolder::ResourceLoaded() |
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134 { |
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135 iResourceLoaded = ETrue; |
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136 iResourceReferenceCount++; |
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137 } |
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138 |
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139 // ----------------------------------------------------------------------------- |
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140 // CWVSettingsUITlsHolder::ResourceUnLoaded() |
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141 // |
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142 // (other items were commented in a header). |
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143 // ----------------------------------------------------------------------------- |
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144 // |
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145 void CWVSettingsUITlsHolder::ResourceUnLoaded() |
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146 { |
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147 iResourceReferenceCount--; |
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148 iResourceLoaded = EFalse; |
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149 } |
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150 |
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151 // ----------------------------------------------------------------------------- |
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152 // CWVSettingsUITlsHolder::OkToUnloadResource() |
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153 // |
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154 // (other items were commented in a header). |
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155 // ----------------------------------------------------------------------------- |
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156 // |
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157 TBool CWVSettingsUITlsHolder::OkToUnloadResource() const |
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158 { |
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159 return ( iResourceReferenceCount == 1 ); |
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160 } |
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161 |
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162 // ----------------------------------------------------------------------------- |
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163 // CWVSettingsUITlsHolder::DoReleaseSingletons() |
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164 // |
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165 // (other items were commented in a header). |
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166 // ----------------------------------------------------------------------------- |
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167 // |
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168 void CWVSettingsUITlsHolder::DoReleaseSingletons() |
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169 { |
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170 iResourceLoaded = EFalse; |
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171 iResourceReferenceCount = 0; |
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172 } |
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173 |
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174 |
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175 |
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176 // End of File |